English

Multipartite Reflected Entropy

High Energy Physics - Theory 2019-10-21 v2 Quantum Physics

Abstract

We discuss two methods that, through a combination of cyclically gluing copies of a given nn-party boundary state in AdS/CFT and a canonical purification, creates a bulk geometry that contains a boundary homologous minimal surface with area equal to 2 or 4 times the nn-party entanglement wedge cross-section, depending on the parity of the party number and choice of method. The areas of the minimal surfaces are each dual to entanglement entropies that we define to be candidates for the nn-party reflected entropy. In the context of AdS3_3/CFT2_2, we provide a boundary interpretation of our construction as a multiboundary wormhole, and conjecture that this interpretation generalizes to higher dimensions.

Keywords

Cite

@article{arxiv.1909.03154,
  title  = {Multipartite Reflected Entropy},
  author = {Ning Bao and Newton Cheng},
  journal= {arXiv preprint arXiv:1909.03154},
  year   = {2019}
}

Comments

20 pages, 7 figures; added references, one figure, and expanded discussion on black holes and the boundary state